1Upload the videos that came out the wrong way round.
2Pick a turn of 90, 180 or 270 degrees.
3Apply the rotation; the pixels and the orientation flag are reconciled so every viewer agrees on which way is up.
4Download the rotated Video file.
Rotate Video FAQ
Does the format decide whether rotation is lossless?
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It does. this format is read and written by the same streaming pipeline as everything else we support. That property is exactly what determines whether a quarter turn is free or costs a re-encode.
Anything specific to Video I should know?
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Yes — the container and codec are probed before anything runs, so mixed uploads in one batch are handled per file. It is the kind of thing that explains why a file looks right in one application and wrong in another.
How does Rotate Video turn the file?
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Concretely, the container rotation flag is preferred over redrawing frames, so most clips rotate instantly and only the containers that cannot carry the flag are re-encoded. Quarter turns and half turns are the common case and take the cheapest path available for the format.
Which video formats does Rotate Video accept?
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MP4, MOV, MKV, WebM, AVI, WMV, FLV, 3GP, M4V, MPEG and MPG. Each file is probed for its real container and codec before anything runs, so a mixed batch is handled correctly file by file.
Is there a file size limit on Rotate Video?
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Yes: free accounts process video up to 40 MB per file whichever container you brought; ffmpeg with x264, x265 and libvpx does the encoding. It is high enough that upload speed is usually the binding constraint rather than the cap itself.
Why would a modern-format site run Rotate Video?
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WEBP.to is built around the modern replacement for both of the old defaults: one format that does lossy, lossless, alpha and animation, and reliably lands smaller than the JPEG or PNG it came from. People arrive here having decided the old defaults are costing them bandwidth, and that decision immediately raises the rest: what size, what quality, what happens to the transparency. Rotate Video is on the same upload and the same account so those questions get answered in one place.
Once Rotate Video has run, what is worth doing next?
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The converter on this site moves images to and from WebP, PNG, JPG and AVIF, which is where you decide whether a smaller file is worth losing the older browsers. Doing it in that order matters: pick the pixels first and the container afterwards, because the container is the cheap decision and the pixels are the expensive one.
Do the sibling sites run something different?
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The engines are identical — same libraries, same workers, same caps. What is different is the opinion attached, and the opinion here rests on a property of the format this site is named after: the same .webp extension can hold a lossy VP8 frame, a lossless one, or an animation, so the sensible processing path is decided per file rather than per extension.
What happens to my file, and is an account required?
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No account is needed. Uploads and results are kept for about 24 hours, which leaves time to download the result, and are then deleted automatically; nobody reads, lists or indexes them. Several files in one job need a paid plan.
